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Automated instructional design helps the instructor model instructional design systematically. The instructor can create a new concept, view existing concept, update a concept, remove a concept and add concept from the central repository (knowledge base) to the OntoID interface shown in Figure 5. When the instructor wishes to create a new concept, first he or she will select the lesson or parent concept from the OntoID conceptual tree. This will indicate the position of the new concept in the tree. Next, the instructor will provide metadata to the new concept. Metadata involved are concept name, objectives, pre-requisite concepts, related concepts, media files and tasks (Figure 6). This new concept will be saved in a knowledge base. To view existing concepts which are stored in the knowledge base, the instructor needs to select the concept from the OntoID interface and information corresponding to the selected concept will be displayed.
Figure 5 Main window of OntoID
Concepts in the concept tree can be modified and updated by the instructor. He or she has to select which concept he or she wishes to update, update the concept and save the updated concept in the knowledge base. Removing a concept from the interface requires the instructor to choose the concept he or she wishes to remove, confirm the removal and the chosen concept will be removed.
In addition to creating a new concept, the instructor can add concepts from the knowledge base. First, the instructor determines the position of the concept by selecting the lesson or parent concept. Next, the instructor can specify the course name and concepts related to the selected course will be retrieved and displayed. The instructor can then choose the concept and add it to the OntoID tree.
Figure 6 The concept of metadata
The development in the OntoID authoring tool is facilitated by its reusable aspect addressed in the following subsection.
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